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Finding the Fourth Proportional to 64,508.73, 89,021.43 and 36,214.22

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Solution

The fourth proportional to 64,508.73, 89,021.43 and 36,214.22 is: 49,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,508.73 : 89,021.43 = 36,214.22 : x
  2. Step 2: Convert to fraction form
    64,508.73/89,021.43 = 36,214.22/x
  3. Step 3: Cross multiply
    64,508.73x = 89,021.43 × 36,214.22
  4. Step 4: Simplify right side
    64,508.73x = 3,223,841,650.73
  5. Step 5: Solve for x
    x = 3,223,841,650.73/64,508.73
  6. Step 6: Final answer
    x = 49,975.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.